Pro 7 fails when trying to 'Merge into output' the stub
library 'ContextualMenu' (in Universal:Libraries:StubLibraries).
This worked fine in Pro 5. When I examine both libs, I notice
that the Pro 7 one is a 'fat' stub library, but the Pro 5 one
is PPC only. It seems that maybe Pro 7 has problems with
'Merge Into Output' when the 'cfrg' resource specifies a fragment
length in the data fork that is not the entire fork.